Repair device for pipes.



G. F. DOELLNER.

REPAIR DEVICE FOR PIPES. APPLICATION FILED MAY 31, 1912.

1,@45,376. Patented NOV. 26, 1912.

CHAR-LES F. DOELLNER, OF NEW YORK, N. Y.

REPAIR DEVICE FOR PIPES.

Specification of Letters Patent.

Patented Nov. 26, 1912.

Application filed May 31, 1912. Serial No. 700,813.

To all whom it may concern:

Be it known that I, CHARLES F, DoELL- NER, a citizen of the UnitedStates, residing at New York city, in the county of New York, State ofNew York, have invented certain new and useful Improvements'in RepairDevices for Pipes; and I do hereby declare the following to be a full,clear, and

exact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to improvements in repair devices for water orother pipes.

The principal object is to provide a device of this character which maybe quickly and easily applied to a defective or leaking pipe toeffectively stop the leak.

A further object is to provide such device having means for tighteningthe same where it is applied.

These and other objects will be apparent from the following descriptionand with particular reference to the accompanying drawings.

In the drawings: Figure 1 is a vertical longitudinal section of a pipeshowing my device applied, Fig. 2 is a bottom plan view of the same,Fig. 3 is a transverse section on the line 3-3 of Fig. 1, Fig. 4 is atransverse section showing the device applied to a smaller pipe, thepatch being held directly by the chain.

Referring to the drawings, 10 represents a pipe which is eitherdefective or leaking to which my device is applied.

The repair device comprises a semi-tubular metallic plate 11 having thelateral flanges l2and 13, in the former of which are formed theopen-ended key hole slots 14, while the flange 13 has an elongated slot15 formed therethrough and extending approximately the entire length ofthe flange, and terminating at one end in a circular opening 16.- A pairof chains 17 are provided, each of which has secured at one end a buttonor head 18, said buttons being adapted to be inserted through theopening 16 and engage the opposite face of the flange, so that'thechains may be moved along the slot to any desired position, the links ofthe chains being adapted when. passed around a pipe to engage in the keyhole slots 14, to hold the plate 11 to the pipe.

The device also includes an elongated and transversely curved metalplate 19, and a similarly shaped rubber plate 20. The rubher plate isplaced over the defective or leaking part of the pipe, and the plate 19placed thereover, after which the plate 11 is placed over the plates 19and 20 and the chains engage in the slots 14, thus holding the parts tothe pipe.

So that the plates 19 and 20 will be as tightly clamped againstthe pipe,I provide the set screws 21 in the plate 11, which'are adapted to bescrewed against the plate 19 v and force the rubber plate 20 tightlyagainst the pipe.

It will thus be seen that the device is simple and can readily beapplied to a pipe, and any slack or play which might be occasioned bythe chains can be readily taken up by the set screws, and the parts bethus tightly clamped against the pipe to stopthe leak. Furthermore, thedevice is capable of use with pipes of various sizes.

As shown in Fig. 4, the device may be clamped to asmaller pipe, thusmaking it unnecessary to provide plates'll of different sizes. In thisarrangement the plates 19 and 20 are placed over the opening which is inthe lower side of the pipe. The end of the screw 21 then bears directlyagainst the pipe.

What' is claimed is:

. 1. A repair device for pipes comprising a semi-tubular metal plate,-aflange on each edge of the plate, one of said flanges having notchesformed therein, the other of said flanges having an elongated slot,flexible.

members held in said slot, said flexible members adapted to be passedaround the pipe and engage in the notches of the other flange, aresilient plate disposed against the pipe and over a rent therein, ametallic plate disflange having transverse open-ended keyhole slots,chains on each engaged with one end in one of the elongated slots,buttons on the In testimony whereof, aifix my signasaid ends of thechains the opposite end of mm, in presence of two witnesses.

each of the chains being engaged in one of the transverse slots, arubber plate engaged CHARLES DOELLNER' 5 over an opening in the pipe,and a tighten- Witnesses:

ing screw threaded in the arcuate plate and J. A. WILLIAMS,

engaging the said metal plate. LEVI E. SOHWAB.

